Trim vsconfig (dotnet#6789)

sqlclr, liveshare, and Just in time debugging aren't necessary

Author: cartermp

.vsconfig

@@ -15,16 +15,13 @@
     "Microsoft.Net.ComponentGroup.DevelopmentPrerequisites",
     "Microsoft.Component.MSBuild",
     "Microsoft.VisualStudio.Component.TextTemplating",
-    "Microsoft.VisualStudio.Component.SQL.CLR",
     "Microsoft.VisualStudio.Component.ManagedDesktop.Core",
     "Microsoft.Net.Component.4.6.TargetingPack",
-    "Component.Microsoft.VisualStudio.LiveShare",
     "Microsoft.VisualStudio.Component.ManagedDesktop.Prerequisites",
-    "Microsoft.VisualStudio.Component.Debugger.JustInTime",
     "Microsoft.VisualStudio.Component.FSharp.Desktop",
     "Microsoft.VisualStudio.Workload.ManagedDesktop",
     "Microsoft.VisualStudio.Component.VSSDK",
     "Microsoft.VisualStudio.ComponentGroup.VisualStudioExtension.Prerequisites",
     "Microsoft.VisualStudio.Workload.VisualStudioExtension"
   ]
-}
+}